Electrical socket



Oct. 3, 1933- R WOLFE 1,928,657

ELECTRICAL SOCKET Filed June 27', 1929 I I \4 2 I E ,3 $7

' f1 Er l 2! 27 O 23 28 T 3 30 2; gz E 3 iE l E&;E5

ARCHIE WOLFE iNVENIQR ATTORNEY Patented Oct. 3, 1933 Myiinventionrelates-to improvements iiielecr standard-screw rim'electric. lightplug.- or lamp without screwingthe latter or said socket; and theobjects of my'impro'vements are; first, to provide in such a: socketaemeans for assuring electrical connection. :between the :center'.contact of; .-.the

y latter iand-srthez .c'enter contact "of any standard "10 screw rimplug or lamp that may baconnected to 'said rsocketpby verticallyreciprocatingsthecenter contactmf thelatter; second,: tozafiordafacilities in suchasocket for bperatinga vertically movablecenterzcontact' in .combinationrwith' 'a means for attaching anda-meanscfondetaching the screw rim of any standard screw rim plugorlamp'without screwing zfor depressing said-center contact aicertain'distance beforesaidplugl or. lamp. can be attached and forelevatingzsaid center contact a suitable distance under spring pressureafter-said plugor lamp has;been attached;-.-third, to provide facilitiesforoperating-all-of the mechanism of said socket by a single meanson'the'outsidaof the latter; fourth,: to produce a socketthat may be 5readilydesigned'for use in dining room chandelier fixtures inrthe homeand for electriclighting fixtures in-general; and fifth, .to'produce'such a socket adapted to carry larger electric currents than a Cam lockcontraction socket described in my Patent No. 1,810,455, issued :June16,1931, and of lower cost manufacture than a. Simplex contraction socketdescribed in my Patent No. 1,770,377, issued July 15, 1930.

One form of my invention is illustrated in the 5 accompanying drawing,in which, Fig. 1, is a view of the invention from a point verticallyabove the center of its upper end; Fig. 2, is a vertical sectional viewon the broken line 2-2, Fig. 1; Fig. 3, is a plan view of the upper sideof the cam 34, and its insulation handle 33, aflixed thereto; Fig. 4, isa vertical sectional view on the broken line 4 -4, Fig. 1; Fig. 5, is aview of the upper end of the lower section 3, of the insulation body,with all mechanism removed and detached from said invention; Fig. 6, isa view of the cylindrical shell 1, detached from said invention; Fig. 7,is a view of the outer face of the lever jaw spring 19, as detached fromsaid invention; Fig. 8, is a view of the inner face of the lever jaw 9,as detached from said invention; Fig. 9 is a perspective view of centercontact and clamping jaws; and Fig. 10 is a side view of Fig. 3.

Similar numerals refer to similar parts throughout the several views.

The shell 1, upper section 2, of the insulation I $128.65? aELEc-TaIcAnSOCKET.

i N. J.

- afnp iicatianumne'zz'isgs. S erialiNo. 374,19 a

body-and lower section'3, ofthe insulation body are "clamped-togetherby. the metal tie bolts 4,;and .5. Said. bolt 4,=.is.threaded to a nutcountersunk into the bottom of said section 3, and boltr5; is threaded'to thefshell terminal post 6. Said shell :1-, i's=adapted=toaccommodate the screw rim of any'standard screw.rim-electric light plugorslamp .without screwing and is provided with the bearingraperturesfl,and -8, which serve as fulcrum-bearings forzthe lever jaws 9, andlO,respectivelmii The inner face:of'each'of said jaws is-provide'd near.its upper end with ribs or'threads 'whichiareadapted to engage thethreads on the .screwirim -of the standard plug or lamp.-- The shoulders.11,:and-12, on said jaws '9, and 10, 'respectively;:-limit the downwardmovement of the latter and the flanges 13, and 14, respectively, on said=shell"1','limit the :u'pwardmovement of said jaws after saidsocket isassembled.

--Said jaws 9, and 10, project downward through saidapertures'Land 8,-andithe apertures 15, and 16;:insaid section 2,-:and into the cavities17, and 18,- respectively, in said section 3. The lever jaw springs-19,and.20,::-are attached to said'jaws 9, andxlO, respectively; and tend tokeep the latter inthe innerposition-as shown in Figs. 1, 2, and 4.':..:The. spring metal center contact2l, projects downward through theaperture 22, in said section 2, and into the slotted cavity 23, in saidsection 3, where-itslower end is secured to said section 3, by themetal-=screw 24, which also secures the center contact terminal post 25,to said section 3. Said center contact 21, is provided with the flangebearings 26, and 27, to which is hinged the upper end of the insulator28. The lower end of the latter is hinged to the metal guide 29, whichis provided with the rectangular cam apertures 30, and 31, and isvertically reciprocable in the slot 32, in said section 3.

The insulation handle 33, is rigidly aflixed to the outer end of thehorizontally reciprocable metal cam 34, which is provided with twoprongs which straddle said lever jaw 9, and project into the cavities35, and 36, in said section 3, and into said cam apertures 30, and 31.The inner ends of said prongs are provided with a similar cam surfacesufficiently inclined from the vertical to engage the lower ends of saidapertures 30, and 31, and actuate said guide 29, and consequently saidinsulator 28, and said center contact 21, downward a certain distanceagainst the spring tension of the latter when said cam 34, is manuallymoved inwardly by means of said handle 33. And when the latter isreleased the spring tension of said center contact 21, elevates theupper end of the latter, said insulator 28, and guide 29. And the latteracting on the cam surfaces of said prongs moves said cam 34, andconsequently said handle 33, outwardly to their original position. Theoutward movement of said cam 34, is limited by the stops 3 7, and .38,which projectirom. said spring 19, into-{the-slots 39, and agreement/arn said. cam 34, and the inward movemeht'of the latter is limited bysaid lever jaw 9. c W

The insulated handle 41, is secured to said lever jaw 10, and projectson the outside of said sec":

tion 3, through an aperture provided inth'e latterz:

The practical operation of the invent is briefly described as follows:Beginning with the mechanisnrrinithe position hand and moved inwardly-orioward-eacli- 'other as far as they will go. During'thedatter rnove mentthe handle 33, first moves the cam 34, into engagement with the: guide;29 which lowers: or depresses the latter togethezawithe'thel insulator28, and centercontact 2l,'a:maximum distance against the z-springtension =of5: the lattena. :Said cam 34, thencollides with the leverijaw9, requiring an additional-force. to be appliecllv on said handles 33,andALwbichsimultaneouslr-moves:the lever :jaws 9, and-l0, lawayfromreach othenz a maximum -r-distanc 3 against: the-mensionmf thesprings 19, and 20.--=.:A plug-or lampmaytmowlbe inserted insaid:socket- 1,'asufar;as itwill go with gentle pressure. LSaid handles33, and mare-then released, whichfirsapermits said springs-.dfi and 20,to move said jaws 9, and 10-, toward each other, securing the.latter..to the screw rim ofsaidmlug or lamp; and secondypermits theself contained spring in said center-contact:21; to elevatethe latteruntiliitv collides 'andzmakes' contact withithe center contact of saidplug orlampv' f1 To detach and disconnect saidplug orv lamp fromsaidsocket againrpress. said handles-33,:and 41, toward each otheras-farasthey willgoiand withdraw said plug or lamp iromsaid shell" 1;. 5The invention described herein-may be. manufactured and used by or.foruthe Govemmentzofi the United States .for governmental purposeswithout the payment .to me :of any royalty thereon. .w i 1 .H Iclaim: 1.In an electrical socket, the combination of a reciprocatingcenter-contact having one end secured to the body of the socket, avertically movable insulated base member supporting said contactintermediate its fixed and free ends, means mounted in the socket forsecuring an electrical appliance thereto, and means carried by thesocket .fqr simultaneously operating said base ms b m gm Se n me l -B2;" In an electriiial soketfth'e combination of a reciprocating centercontact having one end -secured to the body of the socket, a verticallymovable insulated base member supporting the eenteezcontact intermediateits fixed and free ends, means mounted within the socket for securing anelectrical appliance thereto, means noriunallyaholdingi-thez clampingends of said first as shown in Figs. 1, 2, and 4, the handles 33,,and,41, are grasped by a thumb and forefingef'of one eratingthe=center=oontact support and moving the clampingerids of said attachmentsecuring means to an outward position.

3- In ana'electricalrsocketathe combination of a movable center-.11:contact; eaaverticallyl movable insulated :base. member supporting: saidcontact, a'guide member provided: withzopenings; carried :by said basemember, means mountediwithinathe socketrforsecuringsanaelectricaliappliance thereto; and means engaging: in 'saidopenings" in-t'the guide membe1*. foroperating .zthe centeri contactand-with the attachment semiring-mea'ns for op- -eratingithesame.azi cit;1;;;' ":2 15': 1-. 4. zarigzelectricalsocket, the 1 combination of :a,movableicenter contact secure'dzat one'endto theisocket'gfa'verticallyzmovable insulated base 'memberzcsupporting the centerrcontact intermediate its ends-,=means mounted within the socket forsecuring: an; electrical appliance-thereto, and :means extendingwithout: thezsocket "\for engaging :with: the :base :membe'r andattachment securing means for their substantiallysimultaineous-operationu'; r w "5. In .anLeIectricaI-'socketpa'hody'membena mounted thereon; atmovablecenter conttact'secured atone endtothe socket,-a vertically movable insulated base-supporting the freeend :of' the center contact, clamping membersi-ful cr'umed.throrighthe-shell, means normally holding" the clamping: ends .of saidmembers within :the shelL -and 'slidable: means for-simultaneouslydepressing said contact and outwardly moving said clamping'ends. .2

' .c ARCHIE R. WOLFE.

